A Belarusian blogger managed to convince dozens of Russian teachers to make and wear tinfoil hats as means of protection against radiation from NATO satellites.

Vladislav Bokhan, a Belarussian blogger and activist known for his elaborate pranks, made headlines earlier this month when he released several photos of dozens of Russian teachers wearing tinfoil hats decorated with the Russian flag. He reportedly contacted multiple schools in Russia’s Voronezh region, introducing himself as an official from the local branch of United Russia (the country’s ruling party), and ordered them to hold a patriotic master class called “Helmet of the Fatherland.” Bokhan demanded that teachers working at these schools make tinfoil hats to “demonstrate their readiness to protect themselves from radiation from NATO satellites,” and to his surprise, seven of the schools he contacted actually followed his instructions without question.